发明授权
- 专利标题： Polycarbonate film
- 专利标题（中）： 聚碳酸酯膜
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申请号： US918996申请日： 1978-06-26
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公开(公告)号： US4140730A公开(公告)日： 1979-02-20
- 发明人: Rudolph Binsack , Manfred Grundmeier , Eckart Reese , Hugo Vernaleken
- 申请人： Rudolph Binsack , Manfred Grundmeier , Eckart Reese , Hugo Vernaleken
- 申请人地址： DEX Leverkusen
- 专利权人： Bayer Aktiengesellschaft
- 当前专利权人： Bayer Aktiengesellschaft
- 当前专利权人地址： DEX Leverkusen
- 优先权： DEX2354533 19731031
- 主分类号： C08L69/00
- IPC分类号： C08L69/00 ; C08L67/00
摘要：
A polycarbonate film having improved flame resistance and good stress-corrosion-cracking resistance is prepared from a solution of a mixture of a low molecular weight polycarbonate containing at least about 5% by weight halogen and a higher molecular weight polycarbonate prepared from bisphenol containing at least 90 mol percent bisphenol A. The novel film can be used to advantage for self-supporting electrical insulating films.
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